title: [Dynamics of pneumoencephalographic changes in focal epilepsy].
abstract: In the course of a follow up study repeated pneumoencephalographic examinations were carried out in 48 patients with various forms of focal epilepsy. The intervals between the examinations ranged from one to 16 years, and the disease duration was from 3 to 32 years. Also ventriculometric methods of assessing the results of the examinations were used. A progress of the atrophic changes in the brain was noted irrespectively of the disease duration. The hydrocephalia of the ventricular system became more diffuse; the pathological changes of the subarachnoidal space also progressed, however, with retention or deepening of their focal character. A connection between the progress of hydrocephalia and the disease gravity was noted. The focal changes in the subarachnoidal space often progressed in parallel to the paroxysmal intensification of the focal phenomena. The most pronounced and the earliest was a dilatation of the posterior divisions of the IIId ventricle. Prognostically unfavourable were enlargement of one or several divisions of the ventricular system by 4-5 mm and more revealed on repeated examinations, as well as an increase of hydrocephalia mainly in the anterior divisions of the IIId ventricle. The authors suggest to use the data of repeated pneumoencephalographic examinations for correct assessment of the degree of hydrocephalia, determination of the prognosis and choice of the methods of epilepsy treatment.
mesh_terms: D001284:Atrophy; D001927:Brain Diseases / Q000150:complications / Q000000981:diagnostic imaging*; D004828:Epilepsies, Partial / Q000150:complications / Q000000981:diagnostic imaging*; D005500:Follow-Up Studies; D006801:Humans; D006849:Hydrocephalus / Q000150:complications / Q000000981:diagnostic imaging; D011011:Pneumoencephalography; D013346:Subarachnoid Space; D000267:Tissue Adhesions
vernacular_title: Dinamika pnevmoéntsefalograficheskikh izmeneniĭ pri fokal'noĭ épilepsii.